This is quite good, but it reminds me a lot of some other artists I know that know how to draw, but their drawings land somewhere in the uncanny valley in such a way that many parts of them look misshapen and flat. The pieces are all right, but they don’t fit together. The first one’s a good example: would the hands of anyone who was holding 100 pounds of dead weight have their fingers crushed together like that? Look at the angle his left wrist is apparently at. It looks extremely uncomfortable.
They’re good, and I don’t want to say I’m a good artist or anything (I can’t draw stick figures properly), but if you wanted to improve I’d suggest paying closer attention to the mood of your drawing and drawing more emotionally/less logically. I think you get these bizarre shapes cropping up because you’re not creating the image as a whole, but rather organizing the pieces and then drawing each one separately. The hands in the first image look almost copy-pasted into it. Try to make all the parts flow together better. It’s much better to stylize your art than to have a jarring misrepresentation of realistic figures
Sorry if this is unhelpful/cruel.